AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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July 25, 2016 05:51PM
Thanks, Gang. I could see the df being as you say if we assume the voxels are spatially independent but what if there is non-random spatial structure in the data? Wouldn't I be violating assumptions of independence?
Subject Author Posted

comparing distributions of statistical values between groups: estimating spatial degrees of freedom

paul.hamilton July 25, 2016 11:22AM

Re: comparing distributions of statistical values between groups: estimating spatial degrees of freedom

gang July 25, 2016 05:08PM

Re: comparing distributions of statistical values between groups: estimating spatial degrees of freedom

paul.hamilton July 25, 2016 05:51PM

Re: comparing distributions of statistical values between groups: estimating spatial degrees of freedom

paul.hamilton July 25, 2016 05:51PM

Re: comparing distributions of statistical values between groups: estimating spatial degrees of freedom

gang July 26, 2016 01:53PM